Reassembly, Removing the Keypad/Display Board | Motorola HT 1000

replacing the microphone, leave the microphone in the boot.

4.Remove, if necessary, and replace the sound dampening pad.

5.As necessary, replace the speaker and/or microphone while out of the front cover housing.

NOTE: If the microphone is replaced, ensure that the microphone is reinstalled back into the rubber boot with the microphone port facing the round hole at the bottom of the boot.

6.On front display model radios only, notice that the keypad/display board is secured to the front cover housing using six tabs, three small tabs on one side and three larger tabs on the universal connector side. Remove the keypad/display board by inserting a small flat-blade screwdriver in the circuit board slot provided (slot nearest the top retaining tab on the universal connector side of the radio, see Figure 12). A slight prying action will release the keypad/ display board. If applicable, remove the rubber keypad.

NOTE: Be careful not to mar the front cover housing O-ring sealing area. Doing so will compromise the sealing integrity of the radio.

Keypad/Display

Board

Six Retaining

Insert Screwdriver

Blade in This Slot

Universal

Connector

Tabs

Figure 12 Removing the Keypad/Display Board

Reassembly

Keypad/Display Board (front display model radios only)

Front Cover Assembly

Reassembly is the reverse of disassembly. Some suggestions and illustrations are provided to help you more easily reassemble the radio.

1.If applicable, replace the rubber keypad.

2.Place the keypad/display board into the front cover housing at an angle such that the three small slots on the edge of the board slide under the three mating retaining tabs. Ensure that the board slides under the tabs.

3.Near the three larger slots on the other side of the board, use finger pressure to push and press that side of the board down until it snaps into place under the three large retaining tabs.

1.Place the speaker and microphone into their respective positions in the front cover. Make sure that the speaker is seated properly in the recessed area provided.

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Motorola HT 1000 service manual Reassembly, Removing the Keypad/Display Board

Contents

HT 1000, JT 1000, MT 2000, MTS 2000, and MTX Series Page Safety Foreword Contents Disassembly and Reassembly Iii Page Replacement Parts Ordering List of Tables Related Publications Available Separately Vii Model Numbering System Viii Model Charts Model Programming Flashing, and Cloning Model Chart Conventional Systems Radios HT 1000 Models Conventional Systems Radios JT 1000 and MT 2000 Models H01RDH9PA3AN Private Systems Radios MTS 2000 Models PMUF6500D A a List of Batteries List of AntennasXii Maintenance Specifications for VHF Radios Xiii Maintenance Specifications for 800MHz Radios Xiv Glossary ALC PLL Xvi Introduction R N I N GPage Recommended Test Equipment Recommended Test Equipment Service Aids and Recommended Tools Field Programming Service Aids Motorola Part no Description Application Service Tools Recommended Service Tools Equipment Initial Control Settings General SetupTest Mode Earlier. If the radio is placed in Test Mode Test Environments, HT 1000/JT 1000 Radios NO. Description Function Beeps Control Head Test Mode, HT 1000/JT 1000 Radios Test Frequencies, HT 1000 / JTPage Page Test Environments, MT 2000, MTS 2000, and MTX Series Radios Test Frequencies, MT 2000, MTS 2000, and MTX Series Radios Receiver Performance Checks Test Name Communications Radio Test SET Comments Analyzer Transmitter Performance Checks Test Communications Radio Test SET Comments Name Analyzer Power-up Display Codes Error-Code DisplaysPower-up Display Codes Operational Display Codes Operational Display Codes Radio Alignment Procedure General Dtmf Perform the following procedures in the sequence indicated Reference Oscillator Alignment Rated Audio Front-End Pre-Selector VHF/UHF onlyStandard Test Modulation 1 kHz Tone Transmitter Power Squelch Transmit Power Setting VHF UHF Transmit Deviation Limit Transmit Deviation Limit Transceiver Board Identification Transmit Deviation Limit ReferencePage TX VCO Crossover Procedure RX VCO Crossover Procedure Signalling DeviationDtmf Tuning High Speed Signalling Signalling Deviation MDC Disassembly and Reassembly This Radio Contains STATIC-SENSITIVE Disassembly to Board Level Removing the Battery Separating the Cover From the Chassis Rotating the Front Cover Separating Control Top From the Chassis Disassembly of Control Top Removing the RF and Controller Boards Disassembly of Front Cover Assembly Reassembly Removing the Keypad/Display Board Reinstalling the Speaker RetainerMAEPFBracket-22578-A Page Front Cover Assembly to Chassis Seating the Flex Knobs, Antenna, and Battery Inspection Cleaning MaintenancePreventive Maintenance Introduction Safe Handling of Cmos Devices General Above 365 degrees F degrees C., they will SpecificIf neighboring Pbga components are heated Suffer die-bond delamination and possible Solder Tabs Page U t i o n Thin Small Outline Package Tsop Components To Replace an Pbga compo- nent Removing and Replacing Shields To Remove the RF PA To Replace the RF PAPage Exploded Views Refer to electrical parts list transceiver board Top-Display Radios Keypad Radios Uni-board Radios SHIELD, PAPage Transceiver Controller Schematic and Circuit Board Notes Circuit Board Layers Integrated Circuit Details with Pin-Out Names SYN 35U50 X Wlyww Wlyww Universal Connector Pin Numbers and Signal Assignments Universal Connector Option Select OPT SEL Definition MAEPF-2 Diode See Note CAPACITOR, Fixed pF ± 5%Unless stated Fuse 1-Amp U102 5VREG SB+ Error FeedbackNC NC NC NC CLK BATT+ MAEPF-2630 RESISTOR, Fixed Ω ± 5% CAPACITOR, Fixed pF ±30%Transistor See Note 0625W unless stated These Levels Measured by Removing R52 SwitchConnector EXT. ANT DAC CLK Cext NC NC NC NC NC CLKDET VDD VDD2 Batt MAEPF-2630 50V unless stated CAPACITOR, Fixed pF ± 25%COIL, RF nH ABP GND1 GND2 GND3 AG2 RF SwitchCR6 CR7 CR8 CR9 GND1 GND2 GND3 GND4 GND5 NC3 NC4 NC5 NC6 NC7 NC8 NC9 VDD VDD2DET VMULT2 Frefout MAEPF-26305 3Pack.xls CAPACITOR, Fixed pF ± 5% Sheet Unless stated RESISTOR, Fixed Ω ± 0.0625W U105 U104 LCK SW B+ 5VREG LCKVCO MOD RAW B+ SYN SEL Transceiver Board Parts List and Component Location Diagrams RESISTOR, FixedΩ ± 5% .0625W unless stated CAPACITOR, Fixed pF ±5%Fuse 1.0A Filter See Note 2, 73.35MHZ DIODE, Zener See Note 1 U101 GND31 CLK BattGND32 GND30 NUF6499B/C and NUF6502B/C 900MHz Diode U105 GND27 SYN SYN SELGND30 REF OSC GND21 NUF/PMUF6499D 900MHz Electrical Parts List, Transceiver 900MHz NUF/PMUF6499D GND GND1 GND2 RF Switch Reset 5V TX 0V RXANODE2 Pacntl INT CAP Antswbs Switch To Universal Connector Synthesizer Je di HT/JT Tra ns . DIODE, Zener Hear HearClear OptionU701 Clear U708 ResetbU702 Asficsel Spkrcom Aupaen Extspkr SB+ Intspkr ErrorIntmic Optenable Spkrcom Volsense NC3 Extspkrsel U706 U709NC5 NC6 NC7 NC8 Controller BOARD’ Parts List and Component Location Diagram RESISTOR, Fixed Ω ± 5% Chact Reset GND10 GND11 GND12 GND13 Gnda Vccence Enoe Enwe GND VEEUpclk A3 Clke VDD3 VDD4 Busy SPI TX Data Mosi Power SectionAnalog Section SCK SPI RX Data Miso Vaud Regulator Main Power SwitchVdd Regulator U712 MAEPF-25672 CAPACITOR, Fixed pF ± 103DIODE, Zener See Note Icenab Ffout Hiclmpen Compen Lcdis Hcidis FfenSqdet Chact Univio Pwrrst Sqdet Chact Cpnenab Expout Ffenab Cbufou Scirx Eecs Muxcntl SEL LED UV2CS BootstrpVSS4 VSS1 Synsel Roscsel Ascficsel Bootstrp Csgen Uvcs GND2 Keyint OPTSEL1 SWB+ GND1 Blcntl Intspkr Reset Spkrcom IntmicOPTB+/BOOTSEL Mosi Extspkr Datalatch Extmic NTN7512D/E, NTN7513E, NTN7857D/E and NTN7858D/E 107 MAEPF-26096 CAPACITOR, Fixed pF ± 5% 50V unless stated 109HearClear Components Not Placed on NCN6176A RESISTOR, Fixed Ω ± 0.0625W unless stated Ffin VAG Nfilin SWB+ Sqdet ChactExpin Lodsab Cbufin Expbyp Rssiin Ffcnt L U705 Digital Section Main Power Switch Vdd Regulator U702 Front Cover Display Flex Mail Orders Replacement Parts OrderingMotorola Online 115 Parts Identification Telephone OrdersFAX Orders 116 Introduction Circuit Description Appendix aAppendix a Signal Name Connector Plug Function P1 PIN Number Appendix . Secure Module Troubleshooting Secure Operations Service Aid Retrofit Instructions Appendix a . Key Variable Loader Set Secure-Equipped Field Anti-static precautions must be observed at all timesGeneral Set XL IC Present Field Secure Retrofit Tuning Secure Alignment ProcedureEnable Secure On Desired Channels Compensation Appendix a . Secure Deviation Removal And Installation Removal Appendix . Secure Module Location Detail Appendix a . RSS Secure Parameters XL&XL Appendix B . HT 1000 Models Appendix BAppendix B H01RDC9AA1BN Appendix B . JT 1000 Models Appendix B . MT 2000 Models PMUE7272B PMCN6147B H01SDH9AA7AN Appendix B . MTS 2000 Models H01RDD9PW1AN H01RDH9PW1AN H01SDH9PW1AN H01UCH6PW1AN PMUF6499D Pmcn Appendix B . MTX Series Models H01KDF9DB5AN H01RDD9DB4AN H01RDH9DB7AN H01SDH9DB7AN H01UCC6DF3AN H01WCC4DB3AN H01WCH4DB7AN Page Motorola, Inc West Sunrise Boulevard Ft. Lauderdale, FL